Wire-rope coupling.



J. G. LEE S C. C. SUNDERLAND.

WIRE ROPE UOUPLING. iwmumwx FILED JluLYls, 191+ Patented Dec. 22, 1914.

SATES AN EFCE.

JAMES G. LEE AND CHARLES C. SUNDERLND, 0F TRENTON, JERSEY, ASSIGNORS TOJOHN A. ROEBLINGS SONS COMPANY, OF TRENTON, NEW JERSEY, A CORPORA- TIONOF NEW JERSEY.

WIRE-ROPE COUPLING.

Specification of Letters Patent. Patented Dec. 22, 1914,

Application filed July 16, 1914. Serial No. 851,300.

To aZZ ywhom it may concern Be it known that we, JAMES G. Len andCHAnLrs C. St'x'ornnxxn, citizens of the United States, residing atTrenton, county of Mercer, and State of New Jersey, have inventedcertain new and useful Improve4 ments in Tire-Rope Couplings, fullydescribed and represented in the following specification and theaccoiiniuinyiiig drawings, forming a part of the same.

T his invention relates to an improved coupling intended particularlyfor small wire ropes or cords having a fiber covering, usually braidedor woven. the especial object of the invention being to provide anefeient and durable coupling for bell-cords and similar' cords runningover small pulleys, in which great flexibility is required and it isimportant to avoid undue wear on the fiber covering of the wire. y

In the Aaccompanying drawing forming. a part of this specification thereis shown, for purposes of illustration, a portion of a bellcord with acoupling embodying all the features of the invention in their preferredform, and this construction will now be der scribed in detail, and thefeatures forming the invention then specifically pointed out in theclaims.

In the drawing-Figurel is a side view of the cord and coupling, and Fig.2 is a similar View on an enlarged scale taken ai right angles to Fig.1, and with the coupling in section.

Referring 'to the drawing, a is the wire rope or center' of thebell-cord, and b a braided thread cover. The coupling con- 'sists of thesockets c, screw-threaded at one end to'receive the cover o and havingthe coned recess 2 at the other end receiving the wire center o, thisend of the socket also being threaded outside at 3 to enter the cap (Z.rThe cap is screw-threaded at 4 to receive the socket, and carries eye ewhich preferably is formed of a wire inserted through end openings inthe cap (Z and headed down inside the cap by a die, or otherwise, asshown. rThe socket, cap and eye forming the two coupling pieces are thesame at both ends of the cord to be coupled, so that the abovedescription and references apply to both.

bility and durability than ordinary solidwire links, but links of anyother suitable form and construction may be used. The gromets and eyes care preferably made of high carbon steel for strength and long life ofthe coupling. These bell-cordsI must operate over very small pulleysand, in addition to such a link connection as to give great flexibility,it is desirable to reduce the bend of the cord where it enters thesockets c as far as possible, and for this purpose the Caps (Z are conedor tapered on the outside, as shown at 5 in the drawing, thus increasinglargely the life of the bellecord. i

The method of applying the coupling will be understood from a briefdescription in connection with the drawing: The braided cover b isremoved from the ends of the cord, together with the cotton centerusually employed, and the strands and the wires of the strands formingthe rope center a are separated and spread out evenly, and then they aregathered together and passe through the sockets c, and the socketsscrewed on over braided covers b. rThe wires are then spread out tocone-shape in the coned the cover Z1, preferably by pinching in orcrimping the sockets to form crimps 6, preferably both at the outer endof the socket and midway of its screw-threads, so as to grip the braidedcover Z). This is especially desirable because the cords will vary indiameter. The caps CZ are then screwed on the ends of the sockets,solder being preferably run in around the threads so as to lock the capsto the sockets. although other suitable means for locking the caps maybe used. It will be understood that the two caps CZ, (l, with their eyesc, are connected by the gromet or other link connection f, before thesockets are connected to the caps.

What we claim is: 1. A coupling for covered wire rope or cord,consisting of sockets screwing onto the cover of the rope and havingrecesses in which the wire centers are spread and secured, and capsscrewing onto the sockets and provided with eyes having a flexible linkconnection.

2. A coupling for covered wire rope or cord, consisting of socketsscrewing onto the cover ofthe rope .and having recesses in which thewire centers are spread and secured, caps screwing onto the sockets andprovided with eyes, and a wire rope gromet connection between said eyes.

3. A. Acoupling forcovered wire rope or cord, consisting of socketsscrewing onto the cover of the rope and having recesses in which thewire centers are spread' and secured, and caps screwing onto the sockets`and provided with eyes having a exible y linky connection,'said capshaving their outside surfaces tapering inward toward the sockets toreduce the bend of the rope where it enters the sockets in running overpulleys.

In testimony whereof, we have hereunto set our hands, in thepresence oftwo subscribing witnesses.

Witnesses:

ANATIN C. CooLEY, RAYMOND APPLEGATE.

